Conveyer.



C. D. SEEBERGER.

v CONVEYER.

APPLICATION FILED JAN. 3, 1911.

1,087,893. Patented Feb. 17, 1914.

Juucul'c-z:

UNITED STATES arena? ornren.

CHARL ES D. SEEBERGER, 015' NEW YORK, N. Y.

CONVEYER.

To all whom it may concern Be it known that I. Cur-units D; SICEBER- men, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented cer tain new and useful improvements in Conveyers, of which the following is a specification, reference being had therein to the aceompanying drawing.

This invention relates to conveyors and especially to that class of eonveyers known as traveling stairways extending between ditl erent levels and adapted to carry passcngers or freight. in either direction.

The objects of the invention are to provide certain new and useful improvements in the step-frame and wheellmse, and for such purposes the invei'ition consists in the organ-- iications and arrangements of parts hereina fter described and particularly pointed out in the claims.

in the accompanying drawirigs-Figure 1 is an end view of a step unit embodying the featin-es oi" my present invention. and shown associated with a suitable driving chain and tracks; Fig. 32 is a view in elevalion taken from the lam end of Fig. l with part of the riser broken away and with the linkage in section, and Fig, 3 is a top plan view of the parts as shown in Fig. 1

The conveyor is adapted to travel in up per and lower or runs, the former being the transportinn run, and each of which is provided with tracks it) and ll upon \vhirh the step-supporting wheels 12 and 1 run and which are arrang d as inner and outer tracks for their resperti we WliQflil. the tun-l being suppm'tcd upon a suitable frame work not. shown. on the ine the outer track are above the inner tracks and at the zapa; and lower landings the tracks are on the same level, by which arrangement the steps are maintained with their tread surfaces horizontal and in step-like forn'iation on the transporting incline and with. their treads in the same horizontal planes at th lan lingn. the change to and 'ltrotn the etcpre ft'iiflliition being gratlnal as the step x pass along the tracks. landing are reversed the travel reversx to the deer-ending: rn it being i of CUUI'SG that t .irway provide. i transportation in either direction of the steps and th ada pted to transport that the direction of 81) ll from the Specification of Letters Patent.

Application filed January 8, 1911.

The trarlts at. the end of each. i

when the Elli-P; are. oetween more than twi i Patented Feb.1'7,191 4.

Serial N0. 600,813.

vided at its ends with downwardly pr0 ecting brackets 15 adapted to he bolted to seats on the yokes of the running-gear. The running-gear consists of a step axle 16 Whose ends projeet beyond the stepframe, yoke-s 17 having oppositely projecting arms 18 and 19, and the front and rear supporting wheels 12 and 13 respeotively secured on the arms in the usual manner. The running-gear is wider than the step and the arms 19 are curved or deflected laterally to bring their wheels in a. vertical plane outside of or beyond the lane of the other wheels as shown in Figs. 2 and he arms 18 and 19 are rigidly secured to the yokes 17 whiclrare substantially of an inverted U-sha-pe in transverse cross-section, the pendant inner and (Hit/(P311118 20 and 21 of which provide hearings in whieh the axle is journaletl, and the tops ot' wl'iich are extended inwardly toward the center of the step to form inclined sezts for the lower horizontal edges of the brackets 15 which are secured thereto by suitable bolts 23. The inclined stats for the tread are preferably in advance of the center oi" the tread so that the support for the step in advance of its center and the load on the step will normally and usually res in rear of the seats. The span of the yet; s a'lior-als room tor the linkage 2 by which. tin p axles are connected and which the sll m are driven from a suit l i V 4 ersll'md that any suitable lorui oi. linkllil.

age may in en'i 'iloy'ed, that here shown being th linkage described and claimed in my :1) plicatilr-n tor letters Patent tiled January 3rd, 1911, hearing Serial Number (300,614. The spans of the yoke; also for the joints o-t the link l driving wheel (no; alumni, it being sis v The yokes 17 span the linkage and protect l its joints and so locate its position with reference to the steps or sections, while affording room for movements of the same at unit.

Having described my -invention, I

' claim 1. A step-unit comprising a running-gear havin an inclined seat, and a step-frame -bolte to the seat.

:2. A step-unit comprising a running-gear having opposite yokes provided with inclined seatortions, and a step-frame having inelined end-brackets bolted to the seat portions.

3. A step-unit comprising a running-gear having an axle and opposite yokes provided withmclined seats and with oppositely extending Wheel-arms, and a-step-frame having inclined endrbrackets bolted to the seats.

L In a device of the class described, track's, steps each having a runnirig-gear provided with. supports cooperating with said tracks, a system of links connecting said gears, yokes on the gears spanning the links, and a step-frame bolted to the yokes.

faces 5. In a device of the class described,

. each side of the step spanning the links, inclined seats on the yokes, and a step-frame havin brackets provided with inclined iolted to the seats. s a 6. In a moving-stairway, tracks, connected step units having wheels at each end to travel over the tracks, each step-unit comprising a running-gear having end yokes spanning the connections between the units and providing inclined seats, and a stepframe having inclined end-brackets secured to said seats.

7 A step for moving Stairways, having a suitable tread, a yoke at each end of the step having supporting-wheels and an inclined seat for the tread in advance of the center thereof, and linkage pivoted within the yoke.

In testimon whereof Iaflix my signature in presence 0 two witnesses.

CHARLES D. SEEBERGER.

Witnesses i E. L. AUs'rnLL,

R. H. PEPPER. 

